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Small simplifications to base Processor class.

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Signed-off-by: Adrian.Conlon <adrian.conlon@gmail.com>
This commit is contained in:
Adrian.Conlon
2017-06-10 12:42:55 +01:00
parent 49d7a4c169
commit b1aa523dcc
3 changed files with 9 additions and 13 deletions
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6
inc/Processor.h
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@ -1,11 +1,8 @@
#pragma once #pragma once
#include <cstdint> #include <cstdint>
#include <array>
#include <functional>
#include "Memory.h" #include "Memory.h"
#include "Signal.h"
namespace EightBit { namespace EightBit {
class Processor { class Processor {
@ -81,8 +78,7 @@ namespace EightBit {
void popWord(register16_t& output); void popWord(register16_t& output);
uint8_t fetchByte() { uint8_t fetchByte() {
m_memory.ADDRESS() = pc; m_memory.ADDRESS().word = pc.word++;
pc.word++;
return m_memory.reference(); return m_memory.reference();
} }

4
src/Memory.cpp
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@ -7,7 +7,9 @@
#include <algorithm> #include <algorithm>
EightBit::Memory::Memory(uint16_t addressMask) EightBit::Memory::Memory(uint16_t addressMask)
: m_addressMask(addressMask) { : m_addressMask(addressMask),
m_temporary(0) {
clear();
m_address.word = 0; m_address.word = 0;
m_data = &(m_bus[m_address.word]); m_data = &(m_bus[m_address.word]);
} }

6
src/Processor.cpp
View File

@ -19,8 +19,7 @@ void EightBit::Processor::initialise() {
} }
void EightBit::Processor::push(uint8_t value) { void EightBit::Processor::push(uint8_t value) {
sp.word--; m_memory.ADDRESS().word = --sp.word;
m_memory.ADDRESS() = sp;
m_memory.reference() = value; m_memory.reference() = value;
} }
@ -30,8 +29,7 @@ void EightBit::Processor::pushWord(register16_t value) {
} }
uint8_t EightBit::Processor::pop() { uint8_t EightBit::Processor::pop() {
m_memory.ADDRESS() = sp; m_memory.ADDRESS().word = sp.word++;
sp.word++;
return m_memory.reference(); return m_memory.reference();
} }